Road-maintainer



B. R. BONNEY.

ROAD MAINTAINEH.

APPLICATION man Nov. s, 1919.

B. R. BONNEY.

ROAD MAINTAINER.

' APPLlcAloN man Nov. a, 1919.

1,357,685, Patgnd Nov. 2,1920.

3 SHEETS-SHEET 2.

B. R. BONNEY.

RoAD- MAINT/UNER.

APPLICATION FILED NOV- 8, 1919.

1,357,685, PatenaN0v.`2,19z0.

3 SHEETS-SHEET 3.

Pick R..Ban11e y) Streuung narran STATES IJa'reivr oFFlcE.

rien n. BoNNEY, or OMAHA, NEBRASKA, AssrGNon or, ONE-THIRD ro JAMES W. Env/'oon AND ONE-THIRD 'ro c. n nnronn, Born 0F OMAHA, NEBRASKA.

` ROAD-MAINT'AINER.

pecication of Letters Patent.

` Patented NovQZ, 1920.

Application led November 8, 1919. Serial'o. 336,564.

To all whom it may con-cern.'

Be it known that I, Bron R. BoNNnY, a citizen of the United States, residing at Omaha, in the 4county of Douglas and State of Nebraska, have invented certain new and useful improvements in -lload-Maintainers, of which the following is a speciiication.

This invention relates to an improvement in' road maintainers, and has for its object, broadly, to provide such a construction that all rough parts of a roadway may be readily removed, and depressions or pockets may be filled, and that a suitable curvature in crosssection will be formed while the machine moves forwardly, the parts being so arranged that the stresses directed to the vehicle frame will be sustained to advantage, and that a strong construction may be provided having a comparatively light weight, one of the specific objects being to provide means under suitable control for cutting and loosening the groundin the roadway at` the front of the'scraper-blades. 4

The invention consists of' the novel construction, combination and arrangement of parts as 'described herein and claimed, and as illustrated in the accompanying drawing, wherein,

Figure 1 is a plan view of a road inaintainer embodying invention. Fig. 2 is a side view of the same. Fig. 3 is a front view and Fig. l is an end view of a drag or scaricr.- F ig. 5 is a plan view of ascarilier providedy witha` tongue, a tilting-bar and a pair of adjusting-bars. Fig. 6 is a view in side elevation of the tongue and bars shown in Fig. 5 and an end viewy of the scariiier. Fig. 7 shows an end view of a pair of connected `scraper-blades- Fig. `8 is a broken away view showing the front sides of a pair of scraper-blades. Fig. 9 is a view of the parts Vshown in Figs.` 5 and 6,v the teeth of the scarifier being swung to a position above the tongue.

In the drawing, numeral 1 indicates a main frame approximately of U-shape in plan, the off7 side of said frame having a lesser lenoth than the near side. said frame being provided with front wheels 2, and provided at its rearends with casterwheels 3. Numeral l indicates a cross-plate, said plate being disposed closely adjacent to and Jforwardly of the caster-wheels and secured to the U-shaped frame, said crossv plate, therefore, being disposed in inclinedy relation to the longitudinal axis of the vehicle. Numeral 5 indicates a platform upon which an operator may stand, said platform, preferably, being disposed parallel with and rearwardly of the cross-plate 4.

l provide an underframe consisting of an fit 10 are indicated a plurality of scraperblades, each being disposed approximately parallel with the plates 4 and1 6, each blade Vbeing provided with a pair of drawbars 11 which extend forwardly for a pivotal connection with an eye-bolt 12', the latter being mounted in and at longitudinal intervals of the plate 6, the adjacent ends of the blades being pivotally connected by means of wrist# pins 13, or equivalent means.

Means are provided for disposing and maintaining the scraper-blades at higher or lower altitudes, this being necessary so that they may suitably Vengage in fthe ground, and also may be elevated during operation while turning about as well as when driving over bridges ,I or obstructions, said means consisting of horizontal shafts 11i4 disposed in suitable bearings at the upper side ofthe cross-plate 4, saidV shafts being revoluble by hand-levers 15, conventional, toothed sectors 16 being employed and secured to said cross-plate to be engaged by pawls 17 which are provided for the handlevers, one of thetoothed sectors 16, as best shown in Fig. 1, being mounted on the U-shaped frame, its hand-lever 15 being provided with a link 18 which is connected with an upright lever 19, and it will be understood that aswinging movement of said hand lever 15 will cause a swinging movement of the lever 19 for causing a' rotatable movement of the horizontal shaft 20.

Each of theshaftsld4 and 20, preferably,

are provided with acrank or angularly dis-` in their elevated position since the `p'awls of the hand-levers may engage the toothed sectors, said scraper-blades moving down-` wardlyby their own weight when the pawls 17 are released from the toothed sectors, and also adapted to be forced into the ground a suitable distance by use of the hand-levers.

@n account of the construction described,

they scraper-,blades may be elevated at variw ous, requiredheightsV to conform to a desired,rcurved shape of a read bed in cross-l section, and the blade which disposed Vnearest the olf side ofthe vehicle mayV be disposed at suchinclination that a ditch or gutter may be conveniently formed; and

it will be understood that since the scrapei'-,

blades are disposed ininclined relation to the` longitudinal anis of the vehicle, the ground or a part thereof, when the vehicle moves forwardly,may be conducted toward the near sideV of the vehicle, to form a highway having itsY highest part at its middle.`

ln order that the ground may be-cut and loosened at the, front Vof the scraper-blades,

'l provide a plurality of drags or'scariliers,

each consistingef a bar or Vangle/iron 21 provided with teeth 22, tongue-members 23 being-provided for the bars toertend forwardlyfora pivotal mountingV in suitable Vbrackets (Fig. 2) which are secured to the cross-,plate 6. Each angle-bar 2l is provided with a pair of adjusting-bars 24C, the lower ends of the latter having pivotal mountings w in the upset arms g of the'tengue-members 23. The adjusting-bars 2e are adapted to be connected with the draw-bars 11, between the'ends'of the latter, a plurality of apertures c being provided at longitudinal intervals inthe bars 242:,` as best shown `in Figs; 12, 6 and V9, and bolts Z (FW from the bars l1, at greater or lesser distances from the groundythis being of great advantage when Yworking' upon wet roads or upon dry roads which have become packed and hardened.

Since each bar 24 is adjustably mounted upon a bar 11 of a scraperrblade, it is obvi- V ous that one 'of the ends of each scarilier may be maintained at a greater altitude than are moved downwardly, by use of the handlevers, the scarifiers will also have a downward movement for causing the teeth to engage somewhat deeperin the ground.

I provide means for elevating the teeth of each searifier above the ground and above the tongue 23, said means consisting,

being usedjwhich engage in apertures@ (lf 7.) Vofr the bars 11, whereby the scaritiers maybe adjusted. to'be disposed nearer to or farther 'set arms g of tongue-members '23 are pivotally mounted, as indicated at 7L, to permit l swinging movements of the parts, rearwardly Vextending pull-and-push rods 27 being connected with the tilting-bars and extending rearwardly-tothe platform 5, for use of an operator, any suitable means being provided for removably securing the rods ,27 to the. platform after the bars 2l together' with the teeth 22 have been swung to the position shown in 9, the means shown herein consisting of certain forked plates m which are secured to the cross-plate 4t, in which the rods. 27 are slidably mounted, each rod being provided with a cross-pin a adaptedto be liftedover the top ofa plate m when the rod is moved rearwardly, and to then engage the Yrear side of said plate m to preventa forward movement of the pulland push rod. i

The advantages to be derived by operation of the scariliers will be appreciated Vbyusers of the roadmaintainer as described, since the lscraper-blades may not readily enter ground which has become packed and hard, and 4,therefore may fail to remove all of the ridges or hardened areas, but since the scarifiers are disposed forwardly of the scraperblades at Vright angles'to the line of travel of they vehicle, tl1e toothed bars operate to cut into the hardened ridges and solid areas of the lroad-bed,"the blades operating to form a comparatively smooth surface and vconducting the loose earth toward the medial line of the roadbed.

AVlhile I have described specifically the dcsire'd construction, it will be understood that l may change minor details, and also may change size, form' and proportion of parts as lmay be found to be of advantage, these changes, in character and degree, being determined by the scope ofthe invention as claimed.. Y l

I claim: 'l Y f 1I In a, road maintainer, a frame provided with wheels, `draw-bars pivotally connected with the frame, scraper-bladesrigidly connected-with the draw-bars, toothedbars disposed forwardly ofthe scraper-bladesand pivotally connected with the frame and said drawdoars, means movable to permit the scraper-blades and'V toothed bars to have simultaneous downward movements, sald means *also being movable toy cause the vscraper-blades rand toothed barsrto have simultaneous upward movements.

v'2;111 a roadV maintainer, the combination with'avehicle having a main frame andan underframe, draw-bars arranged inpairs and pivotally connected with the underframe, a plurality of scraper-blades each being rigidly mounted. upon a pair of drawa bars, Vwrist-pins connecting the scraperblades connecting rods engaging the scraper-blades and being` movable for elevating the draw-bars and said blades and for moving them toward the ground, and means to prevent an upward movement of the scraper-blades after they have been moved toward the ground.

3. In a road maintainer, the combination .with the frame of a vehicle, draw-bars ar ranged in pairs and pivotally connected with the frame to extend rearwardly thereof, se 'aper-blades disposed transversely of the road with their ends adjacent to each other, wrist-pins pivotally connecting the adjacent ends of said blades7 connecting-rods projecting` upwardly from the scraper-blades and mounted thereon adjacent to the wrist-pins, means for moving the connecting-rods down;

wardly to move the blades into the ground and means for preventing an upward movement of said blades.

4l. In a road maintainer, a frame provided with wheels, draw-bars pivotally connected with the frame, scraper-blades rigidly connected with the draw-bars, toothed bars pivotally connected with the frame and draw-bars means to maintain the toothed bars at predetermined distances from the draw-bars, means movable to permit the scraper-blades and toothed bars to have simultaneous downward movements, said means also being movable to cause the scraper-blades and toothed bars to have si- Vmultaneous upward movements.

5. In a road maintainer, a frame provided withwheels, draw-bars pivotally connected with the frame, tongue-members pivotally connected with the frame, links adapted to be pivotally connected at `selected intervals of their lengths with the draw-bars and pivotally connected with the tongue-members,

serapeiblades rigidly connected with the BICK R. BONNEY. Witnesses:

HIRAM A. STURGES, SCOTT S. MORRISON. 

